Acute ingestion of resistant starch reduces food intake in healthy adults

被引:97
作者
Bodinham, Caroline L. [1 ]
Frost, Gary S. [2 ]
Robertson, M. Denise [1 ]
机构
[1] Univ Surrey, Postgrad Med Sch, Guildford GU2 7WG, Surrey, England
[2] Univ London Imperial Coll Sci Technol & Med, London W12 0NN, England
关键词
Fibre; Appetite; Postprandial insulin; CHAIN FATTY-ACIDS; POSTPRANDIAL VARIABLES; INSULIN SENSITIVITY; DIETARY FIBER; APPETITE;
D O I
10.1017/S0007114509992534
中图分类号
R15 [营养卫生、食品卫生]; TS201 [基础科学];
学科分类号
100403 ;
摘要
Resistant starch (RS), a non-viscous dietary fibre, may have postprandial effects on appetite regulation and metabolism, although the exact effects and mechanisms are unknown. An acute randomised, single-blind crossover study, aimed to determine the effects of consumption of 48 g RS on appetite compared to energy and available carbohydrate-matched placebo. Twenty young healthy adult males consumed either 48 g RS or the placebo divided equally between two mixed meals on two separate occasions. Effects on appetite were assessed, using an ad libitum test meal and 24-h diet diaries for energy intake, and using visual analogue scales for subjective measures. Changes to postprandial glucose, insulin and C-peptide were also assessed. There was a significantly lower energy intake following the RS supplement compared to the placebo supplement at both the ad libitum test meal (5241 (SEM 313) v. 5606 (SEM 345) kJ, P=0.033) and over the 24 h (12 603 (SEM 519) v. 13 949 (SEM 755) kJ, P=0.044). However, there was no associated effect on subjective appetite measures. Postprandial plasma glucose concentrations were not significantly different between supplements, but there was a significantly lower postprandial insulin response following the RS supplement (P=0.029). The corresponding C-peptide concentrations were not significantly different, although the ratio of C-peptide to insulin was higher following the RS supplement compared to placebo (P=0.059). These results suggest that consumption of 48g RS, over a 24-h period, may be useful in the management of the metabolic syndrome and appetite. Further studies are required to determine the exact mechanisms.
引用
收藏
页码:917 / 922
页数:6
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